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公开(公告)号:US5167859A
公开(公告)日:1992-12-01
申请号:US454479
申请日:1989-12-21
IPC分类号: C07D213/30 , C07D213/50 , C07D213/55 , C09K19/34 , G02F1/13
CPC分类号: C07D213/30 , C07D213/50 , C09K19/3444
摘要: 2,5-Disubstituted heterocycles of the formula I ##STR1## in which R.sup.1 and R.sup.2, each independently of one another, are alkyl, alkenyl or oxaalkyl having up to 12 C atoms,L.sup.1 and L.sup.2, each independently of one another are H or F,Y is --O--, --CO--O--, --O--CO-- or a single bond,m is 1 or 2,Z is H, F, OH or alkyl having up to 5 C atoms, andQ is --O--, --O--CO--, or if Z is fluorine or hydroxyl, is also be a single bondare suitable as components of ferroelectric mixtures.
摘要翻译: 其中R 1和R 2彼此独立地是具有至多12个C原子的烷基,烯基或氧杂烷基的式I的2,5-二取代的杂环,其中L 1和L 2各自独立地为H 或F,Y是-O-,-CO-O-,-O-CO-或单键,m是1或2,Z是H,F,OH或具有至多5个C原子的烷基,Q是 -O-,-O-CO-,或者如果Z是氟或羟基,则也可以是单键,作为铁电混合物的组分。
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公开(公告)号:US4925590A
公开(公告)日:1990-05-15
申请号:US321045
申请日:1989-03-09
IPC分类号: C07D239/26 , C07C255/54 , C07C255/55 , C07D213/30 , C07D213/79 , C07D239/34 , C07D319/06 , C07D339/08 , C09K19/20 , C09K19/30 , C09K19/34
CPC分类号: C07C255/55 , C07C255/54 , C07D319/06 , C09K19/20 , C09K19/2007 , C09K19/3066 , C09K19/3068 , C09K19/3402 , C09K19/3441 , C09K2019/3422
摘要: Derivatives of 4-cyano-2,3-difluorophenol of the formula I ##STR1## wherein R.sup.1 is an alkyl group which has 1-12 C atoms and in which one or two CH.sub.2 groups can also be replaced by --O--, --CO--, --CO--O-- and/or --CH.dbd.CH--, no two 0 atoms being directly attached to one another,A.sup.1 and A.sup.2 independently of one another are each 1,4-phenylene which is unsubstituted or substituted by one or two F atoms, and in which one or two CH groups can also be replaced by N, or trans-1,4-cyclohexylene in which one or two non-adjacent CH.sub.2 groups can also be replaced by 0 atoms and/or S atoms,Z is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, OCH.sub.2 --, --CH.sub.2 O, --C.tbd.C-- or a single bond,m is 0, 1 or 2 andQ is --CO-- or --CH.sub.2 --.
摘要翻译: 式I的4-氰基-2,3-二氟苯酚的衍生物其中R 1是具有1-12个C原子并且其中一个或两个CH 2基团的烷基也可以被-O - , - CO-,-CO-O-和/或-CH = CH-,没有两个0个原子彼此直接连接,A1和A2彼此独立地为每个1,4-亚苯基,其未被取代或被一个或多个 两个F原子,其中一个或两个CH基团也可被N或反式-1,4-亚环己基代替,其中一个或两个不相邻的CH 2基团也可以被0个原子和/或S原子所取代, Z是-CO-O-,-O-CO - , - CH 2 CH 2 - ,OCH 2 - , - CH 2 O,-C 3 D或单键,m是0,1或2,Q是-CO-或-CH 2 - 。
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